78results about How to "Easy layout" patented technology

The invention discloses a water-breaking energy-dissipation permeable box type single floating body capable of being assembled, which comprises a hexahedral casing with open front and rear ends; two middle flat plates, which are isolated from each other and connected with the left and right wall plates of the casing, are horizontally arranged in the casing; four inclined plates, which are inclined towards the interior of the casing and connected with edges of the upper and lower wall plates of the casing and edges of the middle flat plates, are arranged at the front and the rear parts of the casing in positions between the upper and lower wall plates of the casing and the middle flat plates respectively; included angles Alpha are formed between the inclined plates and the upper and lower wall plates of the casing; aerofoil-like water diversion structures are arranged between the two middle flat plates in positions close to the front and rear edges of the casing respectively; the end sections of the aerofoil-like water diversion structures are triangular; the two ends of each aerofoil-like water diversion structure are respectively connected with the left and right wall plates of the casing; two floating boxes are respectively clung to and connected with the outer sides of the left and right wall plates of the casing; and a plurality of through holes are uniformly formed in the upper and lower wall plates of the casing, the middle flat plates and the inclined plates. Such assembled water-breaking energy-dissipation permeable box type single floating bodies provided by the utility model can be assembled into a floating breakwater, have favorable water-breaking energy-dissipation effects and good stability and are easy to manufacture and low in cost.

The invention belongs to the flow monitoring technical field and in particular relates to a stream flow monitoring device and a stream flow computing method. The stream flow monitoring device comprises a flow velocity measurement module, a water level measurement module, a microprocessor module, a storage module, a keyboard display module, a GPRS (General Packet Radio Service) module and a power supply module, wherein the flow velocity measurement module adopts an ultrasonic transducer and adopts an ultrasonic velocity difference method to calculate the stream flow velocity; the water level measurement module adopts the ultrasonic transducer to calculate the water level and then calculates the cross section area of a stream channel, so as to calculate the stream flow; and the GPRS module can realize remote data transmission and further realize real-time control. According to the stream flow monitoring device, the stream flow can be monitored in real time and remote data transmission can be realized, the stream flow monitoring device has the advantages that no contact measurement is adopted, installation is simple, little influence on equipment is caused, the accuracy is high and remote transmission can be realized, and is very suitable for monitoring the stream flow of small hydropower stations in mountainous areas of China.

The invention discloses a remote system for monitoring water quality parameters through cellular wireless communication. The remote system comprises a plurality of information collection terminals, a gateway, a WEB server, a database and a monitoring terminal, wherein the plurality of information collection terminals are distributed in a cellular shape and used for sending a plurality of collected water quality data to the gateway through a ZIGBEE (Zigbee) network; the gateway is used for receiving the water quality data and sending the water quality data to the WEB server through an internet protocol; the WEB server is used for carrying out centralized processing and analysis on the water quality data of each information collection terminal, obtaining result data and saving the result data in the database; the monitoring terminal is communicated with the WEB server through the internet protocol and used for observing the result data in the WEB server. The structure of the remote system comprises the cellular collection terminals, the gateway and the server which are auxiliary to each other, so that the simplicity and stability of processes of operating, collecting data, processing data, displaying web interfaces and monitoring clients and the like of the overall system can be realized.

The invention relates to a vault settlement point measuring apparatus in tunnel monitor measurement. The apparatus comprises a steel tape, a lead hammer, a rod cap, a telescoping rod and a measuring point hook. One end of the steel tape is provided with the measuring point hook and the rod cap, and the other end is provided with the lead hammer. The measuring point hook at one end of the steel tape is used for connecting measuring points laid at a tunnel vault. The invention also discloses a burying method of the apparatus simultaneously. In burying, one end of the telescoping rod is sleeved in the rod cap, the telescoping rod is supported to connecting the measuring point hook with the measuring points laid at the tunnel vault, and the lead hammer is arranged at a bottom of the steel tape with free disposition and is used for stretching the steel tape. The apparatus and the method have the advantages of a low cost of manufacture material, a simple laying method, a small error and the like.

The invention relates to a pavement settlement point arrangement apparatus in monitor measurement. The apparatus comprises measuring point steel bar inserted link, a measuring point screw thread cap, a retaining wall sleeve and a protection cover. One end of the measuring point steel bar inserted link is conical drilling head, and the other end of the measuring point steel bar inserted link is a smooth plane and connected with the measuring point screw thread cap through screw thread; and the retaining wall sleeve is arranged outside the measuring point steel bar inserted link, and an upper end of the retaining wall sleeve is provided with the protection cover. The invention also discloses a burying method of the apparatus. The conical end of the measuring point steel bar inserted link has a smaller radius to facilitate break of a soil layer; for usage, the conical end is inserted into a rock-soil layer of the pavement, and the other end is rotatably connected with the measuring pointscrew thread cap through the screw thread; and the retaining wall sleeve is arranged outside the measuring point steel bar inserted link and filled with fragmented dinas. The invention has advantagesof low manufacture material cost, simple burying method and little error, etc.

The invention relates to an auxiliary device for monitoring and measuring convergence points in the tunnel construction by a cross diaphragm (CRD) method and a method for burying the auxiliary device. The auxiliary device comprises an embedded fixed rod, a nut washer, a fixing nut, a measuring point connecting rod and a measuring point hook, wherein an expansion bolt head is formed at one end of the embedded fixed rod and is provided with an expansion piece, and the nut washer and the fixing nut are arranged at the other end of the embedded fixed rod; and the measuring point hook is arranged at one end of the measuring point connecting rod and is used for connecting a steel ruler convergence meter for measurement, and a threaded caliper retaining groove is formed at the other end of the measuring point connecting rod. When buried, the embedded fixed rod can be fixed in a tunnel side wall by putting the expansion bolt head formed at one end of the embedded fixed rod into a drilled hole and knocking the other end of the embedded fixed rod to ensure that the expansion piece expands to extrude surrounding rock; and the embedded fixed rod can be closely connected with the threaded caliper retaining groove because a thread is formed at the other end of the embedded fixed rod, and the measuring point hook on the measuring point connecting rod is used for connecting a convergence hook on the steel ruler convergence meter during measurement. The invention has the advantages that: the cost of manufacturing materials is low, the arrangement method is simple, measuring points can be effectively prevented from being damaged and the like.

The invention discloses a shuttle vehicle power supply device, and belongs to the field of shuttle vehicles. The device comprises a support and a winding conductive mechanism, wherein the two heads ofthe winding conductive mechanism are fixed on the support, the device further comprises a motor, the motor is fixed at one end of the support, and an output shaft of the motor is connected with the winding conductive mechanism; a screw rod is fixedly arranged on the support away from one end of the motor and in threaded connection with a wire winding and guiding mechanism; the device further comprises a sensing device and an encoder, the encoder is connected with the motor, a wire on the wire winding and guiding mechanism penetrates through the sensing device and extends outward, and the sensing device, the encoder and the motor are all in signal connection with a control system of a vehicle-mounted terminal of a shuttle vehicle. The shuttle vehicle power supply device has the advantagesthat when power is supplied to the shuttle vehicle, the wire cannot wind and lap, through the improvement of a device structure, the wire can be neatly coiled on a reel during winding and unwinding, through the measurement of the deploying and retracting length and tightening degree of the wire, the rolling precision of the reel is higher, and lapping of the wire is further avoided.

The present invention discloses a single-point temperature compensation multi-functional intelligent anchor pole and an installation laying method thereof. The pole comprises a non-welding long-gauge multi-grating sensor with temperature compensation, epoxy resin or anchor adhesive, armored cables and a soft plastic sleeve. The non-welding long-gauge multi-grating sensor includes a plurality of long-gauge fiber grating sensing units which are in non-welding series connection in order and a temperature compensation sensing unit in the same non-welding series connection at the top. Two ends of the fibers of the long-gauge fiber grating sensing units are respectively fixed at the anchoring points of the sleeve, one end of the fiber of the temperature compensation sensing unit is connected with the long-gauge fiber grating sensing units themselves and is fixedly connected with the sleeve at the anchoring points, and the other end of the fiber of the temperature compensation sensing unit is free. The single-point temperature compensation multi-functional intelligent anchor pole and the installation laying method thereof can be applicable to anchoring reinforcement in the related engineering such as the construction, the tunnel, the minerals and the like, can monitor the carrying capacity, the strain stress and the damage situation of the anchor rod, and can be configured to monitor the surrounding rock support, the surrounding rock convergence and deformation and stability, etc.

Disclosed is a method for embedding optical fiber sensors in an aircraft cabin. A plurality of longitudinal grooves and a plurality of transverse grooves are formed in the surface of the aircraft cabin in advance, longitudinal cabin inlets are reserved in the two ends of the aircraft cabin, transverse cabin inlets corresponding to the transverse grooves one to one are formed in the circumference of the aircraft cabin, the multi-path optical fiber sensors are distributed in the multiple longitudinal grooves and the transverse grooves, the grooves are filled with glue and fixed, and then the optical fiber sensors can be embedded in the surface of the aircraft cabin. The multi-path optical fiber sensors pass through the corresponding longitudinal cabin inlets and the transverse cabin inlets, then enter the aircraft cabin, are gathered at the two ends of the cabin to form optical fiber bundles, are integrated to an optical fiber connector and then are connected with an information collection device or communicated with an adjacent cabin. By the method, the optical fiber sensors can be embedded in the surface of a single-cabin or multi-cabin butt joint type aircraft, an optical fiber sensing and detecting network is achieved, the mechanical property and damage situations of the aircraft cabin can be monitored comprehensively, and the method has the advantages that reliability is high and operation is easy.

The invention provides an electrical equipment quantity of state collection method based on video recognition and relates to the technical field of data collection. The electrical equipment quantity of state collection method based on video recognition solves the technical problems that the existing collection method is high in cost and inconvenient to lay. The electrical equipment quantity of state collection method based on video recognition includes the specific steps: 1) utilizing a camera to shoot real-time video images of all sensitive parts on objective electrical equipment, wherein the sensitive parts are parts which can display a working state of the electrical equipment, each sensitive part comprises a switch, a disconnector, a valve, a signal light and an indicator light, and the switch, the disconnector, the valve, the signal light and the indicator light are arranged on the electrical equipment; 2) conducting image recognition on the video images which are shot in the step 1 and recognizing working states of all sensitive parts in the video images; 3) obtaining state quantities which correspond to working states of all the sensitive parts in the objective electrical equipment according to the working states of all the sensitive parts which are recognized in the step 2. The electrical equipment quantity of state collection method based on video recognition is suitable for state quantity collection of the electrical equipment.

The invention provides a fiber grating intelligent composite material structure based on 3D printing, and the intelligent composite material structure comprises a composite material matrix and a fiber inside the composite material matrix; the fiber comprises a grating and a signal transmission tail fiber; the signal transmission tail fiber is lead out from the composite material matrix; part of the composite material matrix is printed through 3D printing and the rest of the composite material matrix is printed after adding the fiber through 3D printing. The composite material structure is printed through 3D printing; the intelligent healthy monitoring of the composite material structure that has a complex structure is realized by embedding the fiber grating in the material printing process; the installation position and the installation state of the fiber grating can be controlled because the 3D printing process can be interrupted at any time; the temperature and strain at any position of a composite material member can be monitored, and therefore the healthy real time monitoring of the composite material structure that has a complex structure is realized.

The invention provides an apparatus and method for simulating and measuring drag forces on aquatic plants at different flow rates. The apparatus comprises a speed regulating motor, a fixed rod, a traction rope and a pair of rails. The rails are arranged oppositely in parallel along the upper end of a water tank. Rollers matching the rails are arranged at the two ends of the fixed rod respectivelyand the fixed rod is erected between the rails vertically; the fixed rod and the speed regulating motor are connected by the traction rope parallel with the rails. A dynamometer is fixedly connected to the fixed rod; and a force-transmitting rod is fixedly connected to a measuring end below the dynamometer and is fixedly connected with a fixture. According to the apparatus, the influences of the hydrodynamic factors of the ecological restoration project can be determined well based on the calculated drag force parameter of the plant and thus the plant community configuration is optimized, so that the ecological restoration effect is improved. The apparatus is suitable for the aquatic plant ecology research and aquatic plant maintenance management practice. The apparatus has advantages of simple manufacturing method, great easiness in operation, high measurement precision and reliable data.

The invention provides an online intelligent monitoring system for power transformation equipment. The online intelligent monitoring system for the power transformation equipment comprises a WSN (wireless sensor network)-based power transformation equipment sensing monitoring module, a monitoring centre and an intelligent terminal; the power transformation equipment sensing monitoring module is used for acquiring power transformation equipment state data and transmitting the acquired power transformation equipment state data to the monitoring centre; the monitoring centre is used for performing data analysis and processing on the power transformation equipment state data, and judging the health state of the power transformation equipment in time; the intelligent terminal is used for acquiring the power transformation equipment state data and the health state of the power transformation equipment by accessing the monitoring centre. According to the online intelligent monitoring system for the power transformation equipment, wireless monitoring of the power transformation equipment is realized.

The invention discloses a temperature measuring control device and method for a novel battery and an assembled battery, which are applied to static and dynamic temperature measurement of various batteries and battery packs thereof. The temperature measuring control device comprises a temperature sensing front end, a temperature signal acquisition and calculation module, a battery management module, a communication module and a terminal and independent display module, and is powered by a battery pack, wherein the temperature sensing front end, the temperature signal acquisition and calculation module, the battery management module, the communication module and the terminal and independent display module are sequentially connected; an independent power supply module is connected with the temperature signal acquisition and calculation module and the battery management module respectively; the battery pack is connected with the battery management module; the temperature sensing front end comprises a fiber or grating sensor, and is arranged on the battery pack through a heat-conducting and fixing component. The temperature measuring control device is convenient to arrange, easy and convenient to operate and high in temperature measuring accuracy, can effectively monitor the temperature change of each battery in each region in real time, is continuous in detection point, wide in range, electrically neutral, resistant to radio frequency and electromagnetic interference, flame-proof, explosion-proof, resistant to corrosion and resistant to high pressure, and can work in a variety of environments.

The invention relates to a device and method for measuring a fluid velocity slippage coefficient of a seepage-free flow interface. The device comprises a model housing, an artificial sandstone, a buffering partitioning plate, a water supply tank, a vacuum pump, a liquid trap, a camera, and a laser transmitter, wherein the artificial sandstone is disposed at the center of the interior of the model housing, the interior of the artificial sandstone is provided with a seepage channel, and a free flow channel is formed between the top of the artificial sandstone and a cavity of the model housing. The buffering partitioning plate achieves the buffering injection of fluid, and enables the injected fluid to move forwards uniformly. A laser Doppler speed measurer consists of the laser transmitter and a coordinate frame, and obtains the flow information of fluid in the free flow channel through laser detection. The device is simple in structure, is convenient to arrange, can precisely construct a speed slippage condition at a seepage-free flow coupling interface according to an experiment result, provides the technical basis and support for the coupling of the flowing of fluid in a pure fluid region and a porous dielectric region, and provides fundamental basis for the further flowing numerical simulation.

Disclosed is a hollow box for concrete structure, which comprises an upper box board (1) and peripheral formworks (2), the upper box board (1) covers on the peripheral frameworks (2), the upper box board (1) and the peripheral formworks are split-and-paste prefabricated members, characterized in that the lower portion of the peripheral frameworks (2) is provided with at least a notch or hole (4). The invention can be applied to various building slabs, house roofings, walls, foundation bedplates and hollow bridges.

The invention discloses a cooking utensil. The cooking utensil comprises a box body; a door body rotatably arranged on the box body to open or close the box body; a first door hook arranged on the door body; a locking base arranged on the box body; a rotating block pivotally arranged on the locking base between a locking position and a releasing position, wherein the rotating block is suitable for being hooked by the first door hook at the locking position and allows the first door hook to be separated from the rotating block at the releasing position, and the rotating block is provided with a balance position between the locking position and the releasing position; and a driving device configured to constantly drive the rotating block to rotate in the direction away from the balance position. According to the cooking utensil, the door closing force can be buffered, and the cooking utensil has the advantages of being simple in door body structure, easy to arrange and assemble and the like.

The invention discloses a remote sensing image semantic segmentation method based on parallel cavity convolution, and relates to the technical field of remote sensing images, and the method comprises the following steps: obtaining a high-resolution remote sensing image in advance, and carrying out the slicing, normalization and standardization of the high-resolution remote sensing image, and obtaining a source high-resolution remote sensing image; initializing a low-layer network of a feature extraction network resnet101 based on a resnet101 parameter pre-trained on an ImageNet, constructing a parallel cavity convolutional network, and extracting a shallow-layer feature of a source high-resolution remote sensing image; inputting the shallow layer features into a parallel dilated convolutional network to obtain multi-scale information, and fusing the multi-scale information; and fusing the fused features with the shallow features again, and repairing image-level information by using a full-connection conditional random field to obtain a semantic segmentation result. Under the condition that extra parameters are not increased, the receptive field of convolution is expanded, and compared with standard convolution achieving the same receptive field, the parallel cavity convolution method can save more video memories.

The present invention provides an intelligent monitoring system for the status of wind turbines, including a status monitoring module for wind turbines, a data analysis and processing center, and an intelligent terminal. The status monitoring module for wind turbines is used to collect status data of wind turbines The data is collected and sent to the data analysis and processing center; the data analysis and processing center performs data analysis and processing on the status data of the wind turbine to judge the health status of the wind turbine in time; the smart terminal obtains the status of the wind turbine by accessing the data analysis and processing center Data and health status of wind turbines. The invention realizes the wireless monitoring of the state of the wind turbine.

The invention discloses an engineering construction progress monitoring system on the basis of an internet of things. The engineering construction progress monitoring system comprises a positioning assembling device, a data processor and a BIM (building information models) workstation. The positioning assembling device comprises control engineering positioning devices and mobile equipment positioning devices, and the control engineering positioning devices are arranged on permanent buildings or structures of project control division engineering; the mobile equipment positioning devices are arranged on construction equipment for the permanent buildings or structures; data can be exchanged between the data processor and the positioning assembling device via a public internet, and the data processor is used for computing vector difference between the control engineering positioning devices and the mobile equipment positioning devices of the positioning assembling device and transforming the vector difference into engineering progress information; the data processor is in data connection with the BIM workstation, and the engineering progress information transmitted by the data processor can be received by the BIM workstation and can be exhibited in BIM of engineering.

The invention relates to a solar water heater inlaid in a wall. The solar water heater inlaid in the wall mainly comprises a panel solar thermal collector and a heat preservation water tank. The panel solar thermal collector is connected with a water storing tank through a water inlet pipe and a water outlet pipe, and the solar thermal collector is inlaid in a sunny-side wall. A fixed support frame is utilized for fixing the solar thermal collector in the wall, and a heat insulation board is arranged between the solar thermal collector and the wall. According to the solar water heater inlaid in the wall, the solar water heater is inlaid in the sunny-side wall, the problem that originally, a solar water heater can be only arranged at the top floors in a high-rise building is solved, utilization rate of solar energy is greatly improved, and original beauty of the building is maintained.

The invention relates to a fixed type intelligent gradiograph, a fixed type intelligent gradiograph system and an implementation method. The gradiograph comprises a cylindrical cavity, micro-electro-mechanical tilt angle sensors are distributed at the upper, middle and lower positions in the cylindrical cavity, an active radio frequency identification data transmission module, a power supply module and a micro-control unit module are arranged close to the micro-electro-mechanical tilt angle sensor in the middle and are integrated to an IC circuit board, the three micro-electro-mechanical tiltangle sensors are connected with the micro-control unit module, the two micro-electro-mechanical tilt angle sensors respectively located at the upper and lower positions are connected with the micro-control unit module through middle axis cables, and the power supply module is used for supplying power to the whole gradiograph; and the micro-control unit module is connected with an external data collection end through the active radio frequency identification data transmission module. According to the fixed type intelligent gradiograph, the layout of a monitoring system is simplified, the usability of the monitoring system is improved, and the monitoring precision of the oblique and horizontal translation station changes of an underground space engineering structure is improved.

The invention provides a hinge assembly of a butterfly door and a vehicle. The hinge assembly of the butterfly door is connected between a vehicle door and a vehicle body, and mainly comprises a butterfly hinge and a linear driving device. The butterfly hinge comprises a hinge shaft, a first connecting part and a second connecting part, wherein one end of the first connecting part and one end of the second connecting part are connected with the hinge shaft. The other end of the second connecting part is fixedly connected with the vehicle door; the linear driving device is connected with the vehicle body in a hinged mode, and the power output end of the linear driving device is connected with the other end of the first connecting part in a hinged mode; and under the driving action of the linear driving device, the second connecting part rotates along with rotating of the first connecting part, and thus the vehicle door can rotate relative to the vehicle body. The hinge assembly of the butterfly door is small in size and can be installed inside a vehicle cabin, and thus the attractiveness of the appearance of the vehicle can be ensured; only one butterfly hinge is adopted, and thus the arrangement way is simple; and the opening and closing angle of the vehicle door is convenient to adjusted.

The invention discloses a water sensor network. The network comprises an underwater acoustic sensor network, a water surface floating relay network in communicated connection with the underwater acoustic sensor network, a land information transmission network in communicated connection with the water surface floating relay network, and a monitor data processing terminal in communicated connection with the land information transmission network; the underwater acoustic sensor network is divided into multiple water depth layers according to the underwater depth, multiple underwater acoustic sensors are arranged on each water depth layer; the underwater acoustic sensors are in communicated connection in a layer-to-layer vertical upload way from the depth to the shallow; the water surface floating relay network comprises multiple water surface floating relays, the underwater acoustic sensor at the uppermost water depth layer is in communicated connection with the water surface floating relay with the maximum signal strength. The underwater acoustic sensor of the water sensor network is provided with the Wi-Fi communication function, the underwater acoustic sensors are configured in batch when the water sensor network networking is finished; and the convenient laying and the data acquisition of the underwater sensor network in the large-area and large-water depth water are realized.

The invention discloses a device for distributing optical fibers on a steel rail. The device comprises a main body bracket (10), a walking device (20) used for walking on the steel rail to be measured and arranged on the main body bracket (10), a glue-injecting pressing device (30) and an optical fiber feeding device (40). According to the device for distributing the optical fiber on the steel rail, disclosed by the invention, convenient distribution of the optical fibers on the steel rail is realized through arranging the glue-injecting pressing device and the optical fiber feeding device, and distribution efficiency can be increased through the walking device.

The invention discloses an electronic device heat dissipation device based on an ultrasonic energy converter. The electronic device heat dissipation device comprises one or multiple ultrasonic energyconverters arranged to close to a heat source formed by the electronic device; the ultrasonic energy converter is used for forming acoustic streaming in a disturbance way to perform heat dissipation on the electronic device; on the one hand, the ultrasonic energy converter is used as the power component of a heat exchange medium, so that the produced ultrasonic wave can disturb the heat exchange medium so as to form the acoustic streaming flowing through the electronic device heat source; compared with the traditional air-cooling and liquid-cooling and like heat dissipation way, the heat dissipation device has the advantages of being low in power consumption, silent, insensitive to the dust and high in reliability; on the other hand, the heat dissipation device can work as normal by arranging the ultrasonic energy converter on a medium channel passing through the heat source and through the supporting of a simple control circuit; the heat dissipation device has the features of being convenient for layout and simple in circuit, and the heat dissipation can be applied to the integrated circuit under multiple environments.

The invention relates to an ML (Match Line) structure, in particular to an OR type cascade ML structure, which consists of first, second to n-th single-stage OR type ML circuits through cascade connection in series, wherein each single-stage OR type ML circuit comprises a comparison control module, a sensitive amplifier and first, second to n-th TCAM units; each comparison control module is connected with the corresponding sensitive amplifier through an ML; and each of the first, second to n-th TCAM units is connected with the ML in parallel. Most searching operations are mismatched in the first stage, the later-stage searching operations do not need to be started; the correlation between the single-stage ML power consumption and the TCAM unit number is small, so that the integral circuit ML average power consumption cannot be increased due to the increase of the work circuit bit number; meanwhile, the resetting operation on a search line is not needed by the ML structure; and the power consumption reduction of the search line is facilitated.

The invention relates to a stable super-high observation tower for measurement in prefabricating of segmental beams. The observation tower comprises a steel pipe pile foundation buried in the ground, a fixing cushion cap, steel pipe stand columns, fixing collar beams, a platform support, an observation platform, a protection shelter, a combined safety ladder and an observation pillar. The fixing cushion cap locates on the ground and is connected with the steel pipe pile foundation. The steel pipe stand columns are welded with the steel pipe pile foundation through three steel pipes and passe through the fixing cushion cap. The top and middle of the steel pipe stand columns are provided with the fixing collar beams connected with three steel pipe stand columns. The bottom of the platform support is connected with the fixing cushion and the observation platform is arranged on the platform support. The observation platform locates on the platform support and is provided with the observation pillar through a circular hole. The protection shelter is connected with the top of the fixing cushion cap through a color steel plate and the platform support and surrounds three sides of the observation platform. An observation window is arranged at the upper position, within the observation sight, of the protection shelter. The combined safety ladder is hoisted and welded on one side of the observation platform, wherein the side of the observation platform is not provided with the protection shelter. The observation pillar is buried in steel pipe stand column concrete in advance.

The invention discloses a display screen, a pixel circuit unit and a control method thereof. The pixel circuit unit comprises a light emitting device, further comprising: at least two simple pixel compensation circuits connected with the light emitting device to provide driving current for the light emitting device; the pixel compensation circuits are connected with the light emitting device. Theapplication of the invention can improve the PPI of the display screen, in particular the PPI of the display screen of the wearing equipment.